Google Nano Banana 2 Edit
Nano Banana 2 Edit (Gemini 3.1 Flash Image) is Google’s advanced AI-powered image editing and generation model, designed to make visual transformation as intuitive as describing it in words.
Built on Google’s cutting-edge computer vision and generative research, it combines precision, flexibility, and semantic awareness for professional-grade editing.
Why Choose This?
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Natural language editing
Modify images using simple text instructions — the model understands context and relationships.
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Multi-image reference
Upload up to 14 reference images for complex edits and compositions.
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Multi-resolution support
Output in 1K, 2K, or 4K resolution based on your needs.
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Flexible aspect ratios
Multiple options including 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, and 21:9.
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Prompt Enhancer
Built-in tool to automatically improve your edit descriptions.
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Format choice
Export in PNG or JPEG format.
Parameters
| Parameter | Required | Description |
|---|
| images | Yes | Reference images to edit (max: 14, click "+ Add Item" to add more) |
| prompt | Yes | Text description of the desired edit |
| aspect_ratio | No | Aspect ratio: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9 |
| resolution | No | Output resolution: 1k (default), 2k, 4k |
| output_format | No | Output format: png (default), jpeg |
How to Use
- Upload reference images — add the images you want to edit (up to 14 images).
- Write your prompt — describe the edit clearly (e.g., "Change the man to a woman").
- Choose aspect ratio (optional) — select a preset or leave empty for default.
- Select resolution — choose 1K, 2K, or 4K based on your needs.
- Choose output format — PNG for transparency support, JPEG for smaller file size.
- Use Prompt Enhancer (optional) — click to automatically refine your description.
- Run — submit and download your edited image.
Pricing
| Resolution | Cost |
|---|
| 1k | $0.08 |
| 2k | $0.08 |
| 4k | $0.16 |
Best Use Cases
- Character Modification — Change attributes like gender, age, clothing, or appearance.
- Object Replacement — Swap elements within images while preserving context.
- Style Transfer — Apply different visual styles to existing images.
- Text Editing — Modify on-image text while maintaining design consistency.
- Scene Adjustment — Change backgrounds, lighting, or environmental elements.
Pro Tips
- Use clear, specific edit instructions for best results (e.g., "Change the man to a woman" rather than "modify the person").
- Start with fewer reference images (1–3) for simpler edits.
- More reference images can help with complex compositions but may affect stability.
- 2K offers the best value — same price as 1K with higher resolution.
- Try the Prompt Enhancer to automatically improve your descriptions.
Notes
- Both images and prompt are required fields.
- Maximum reference images: 14 (recommended: fewer images for better stability).
- If aspect_ratio is not selected, the model uses a default ratio.
- 4K resolution costs 2× the standard rate.
- Ensure your prompts comply with Google's Safety Guidelines.
Related Models
- Nano Banana 2 Text-to-Image — Generate images from text prompts.
- Nano Banana Pro Edit — Pro tier editing with enhanced quality.
- Nano Banana Pro Text-to-Image — Pro tier image generation.